package com.wanxi.arr;

public class ErWerArr {
    public static void main(String[] args) {
        int[] arr = {1, 2, 3};//{{1,2,3},{1,2,3},{1,2,3}}
        double[][] array = {
                {1, 2.0, 4},
                {2},
                {2, 4}
        };
        int[] [] a={{1,3}};

        System.out.println(  array[1][0]);
    }
}
